The Intel 80386 is a microprocessor introduced by Intel in 1985. It was the first 32-bit processor in the x86 architecture, allowing for improved performance and memory management compared to its predecessors. The 80386 supported virtual memory and multitasking, making it suitable for advanced operating systems like Windows and Unix. This processor featured a 32-bit data bus and could address up to 4 GB of RAM, significantly enhancing computing capabilities. The 80386 was widely used in personal computers and workstations during the late 1980s and early 1990s, paving the way for future developments in microprocessor technology.